Talus slope freezing and thawing circulating action deformation physical model experiment apparatus and experimental method

A technology of freeze-thaw cycle and physical model, applied in the analysis of rock pile slope deformation failure mechanism and stability research, rock pile slope deformation physical model test device under freeze-thaw cycle action, rock pile under freeze-thaw cycle and excavation The field of geotechnical test chambers for slopes can solve problems such as inability to simulate freeze-thaw cycles, single test results, and unstable test results, and achieve the effects of reducing manual recording workload, improving test accuracy, and improving test efficiency and accuracy

Inactive Publication Date: 2015-07-29
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a rock pile slope freeze-thaw cycle deformation physical model test device and test method, which can improve the single test result of the rock pile slope physical simulation device in the prior art, the test result is unstable, and It cannot simulate problems such as freeze-thaw cycles, and has the characteristics of convenient operation and high test efficiency. It is suitable for simulation tests of freeze-thaw cycles and slope deformation and damage induced by excavation of tunnel openings and slopes.

Method used

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  • Talus slope freezing and thawing circulating action deformation physical model experiment apparatus and experimental method
  • Talus slope freezing and thawing circulating action deformation physical model experiment apparatus and experimental method
  • Talus slope freezing and thawing circulating action deformation physical model experiment apparatus and experimental method

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Embodiment 1

[0067] In the present invention, in order to be applicable to the physical model test of rock pile slope deformation under freeze-thaw cycle action, a kind of rock pile slope freeze-thaw cycle action deformation physical model test device is set, and the test device includes a rock pile slope 125 On the base 101 on the base 101, a metal base plate 102 and a plexiglass model box 105 are sequentially arranged on the base 101, and a front door 133 is arranged on one side of the plexiglass model box 105, and a front door 133 is arranged at the bottom of the front door 133 A drain hole 107, a flow rate rheometer 106 is arranged between the drain hole 107 and the front door 133, snow melting equipment is arranged on both sides, the front and the top of the plexiglass model box 105, and in the organic A thermometer is arranged on the top of the glass model box 105, a loading device 127 is arranged at the rear of the plexiglass model box 105, and at least one displacement gauge 115 is ...

Embodiment 2

[0074] like Figure 1-9 As shown, in this embodiment, in order to ensure longer sunshine time, the device is installed on the rock pile slope 125 in the north-south direction and inclined to the west. In this device, the snow melting device includes a heating device 111 and a heat preservation device 109, and the heating device 111 is arranged outside the plexiglass model box 105 in this test device, and is arranged at even intervals around it. The heating device 111 can adopt an oil bath with adjustable power, and is evenly distributed around the plexiglass model box 105. , The oil heater is to install the electric heating tube inside the cavity of the heat sink, and the heat conducting oil is injected around the electric heating tube in the cavity. When the power is turned on, the heat transfer oil around the electric heating tube is heated and rises to the upper part of the cavity, convectively circulates along the heat dissipation tube or heat sink, and radiates heat throu...

Embodiment 3

[0079] In this embodiment, a physical model test method for deformation of a rock pile slope due to freeze-thaw cycles is disclosed, which includes the following steps:

[0080] S1: Determine the similarity ratio of the model test: determine the similarity ratio of the model test according to the field geological survey and geological exploration data;

[0081] The present invention adopts subdivided filling. In order to make the test results closer to the actual environment to be simulated, the present invention analyzes the field geological survey and exploration data through step S1 to determine the similarity between the test and the geological structure of the environment to be simulated, so as to improve the accuracy of the test. sex;

[0082] S2: Simulate the underlying bedrock 123 of the rock pile slope 125: use poured concrete to simulate the bedrock 123;

[0083] By step S2, the bedrock 123 structure below the rock pile slope 125 is simulated, and the bedrock 123 is...

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Abstract

The invention relates to a talus slope freezing and thawing circulating action deformation physical model experiment apparatus and experimental method. The talus slope freezing and thawing circulating action deformation physical modeling experiment apparatus comprises a base placed on a talus slope, wherein a metal base plate and an organic glass model box are sequentially arranged on the base from bottom to top; a front door is arranged on the organic glass model box; a water drainage hole is formed in the bottom of the front door; a flow velocity rheometer is arranged between the water drainage hole and the front door; snow melting devices are respectively arranged on the two sides, and at the front part and the top of the organic glass model box; a thermometer is arranged at the top of the organic glass model box; a loading device is arranged at the rear part of the organic glass model box; at least a displacement meter is arranged inside the talus slope. The experiment apparatus disclosed by the invention can solve the problems that the existing talus slope physical simulator is single in test result, unstable in test result and incapable of simulating the freezing and thawing circulating action, has the characteristics of being convenient to operate and high in testing efficiency, and is suitable for simulation tests on slope deformation and breakage induced by freezing and thawing circulation and tunnel portal slope excavation.

Description

technical field [0001] The invention relates to a physical model test device and test method for deformation of a rock pile slope under freeze-thaw cycle action, and belongs to the field of civil engineering and geological engineering, in particular to a geotechnical test box for a rock pile slope under freeze-thaw cycle and excavation. It is applicable to the deformation and failure mechanism analysis and stability research of rock pile slopes in the extremely cold regions of northern my country. Background technique [0002] The stability of rock pile slopes is one of the key issues that people pay special attention to and urgently need to be solved in the process of tunnel construction in mountainous areas, often causing huge losses to the project. At present, there are large areas of rock pile slopes in northern my country, especially in Benxi, Liaoning Province. Due to the engineering characteristics and deformation and failure mechanism of rock pile slopes, they are di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
Inventor 朱大鹏秦粮凯王刚田力邓禄清李佰龙
Owner SOUTHWEST PETROLEUM UNIV
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